// when using either ":=" or "var" without a type
// type is inferred based on type of the rvalue in
// case rvalue is a variable, or the precision
// required to represent rvalue in case rvalue is
// a constant.

package main

import "fmt"

func main() {
   x := 3
   y := 42.0
   fmt.Printf("Type: %T Value: %v\n", x, x)
   fmt.Printf("Type: %T Value: %v\n", y, y)
}